Question

Cine ma poate ajuta si pe mine la ex 5 si 6 ....este urgent ...!!

Answer 1

ex.6
sin10°=sin(180°-170°)=sin170°
sin10°+sin30°-sin170°=sin170°+sin30°-sin170°=sin30°=1/2
ex.5
$\frac{ x_{1}+1 }{2}=3; \frac{ y_{1}+3 }{2}=3 \\ x_{1}=5; y_{1}=3 \\ Q(5;3)$